In order for you to play Dust: An Elysian Tail on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Snow Leopard 10.6.8, 32/64-bit
Processor (CPU):
Intel Core 2 Duo 2.8Ghz or equivalent
Memory (RAM):
2 GB RAM
Graphics Card:
OpenGL 3.0+ support (2.1 with ARB extensions acceptable)
Hard Disk Space:
1.5 GB HD space
Input:
Keyboard
In order to play Dust: An Elysian Tail on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Mountain Lion 10.8.5, 64-bit
Processor (CPU):
Quad Core CPU
Memory (RAM):
4 GB RAM
Graphics Card:
OpenGL 3.2+ support
Hard Disk Space:
1.5 GB HD space
Input:
Mouse and Keyboard or Gamepad